Enhanced “e Series” cable, featuring a dual run of SC-5, plus a single 28awg UPOCC conductor on the positive poles, forming an 11-gauge design. Deep cryogenic treatment, solderless, nano-fluid infused terminations, all conductive surfaces treated with Kontak. High performance, copper-based spades or locking bananas, durable Techflex sleeving. Single wire, or double bi-wire available. Hand built in the USA.